Patent application number | Description | Published |
20080215272 | Fluorescence Microscope and Fluorescence Microscope Method - To increase spatial resolution by observing a sample based on saturated fluorescence components. A fluorescence microscope according to the present invention includes: a laser light source | 09-04-2008 |
20100110986 | BASE STATION DEVICE, TERMINAL DEVICE, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A base station device performs communication with terminal devices, and includes a load information acquisition section which acquires load information which shows a load on the base station device, a reporting method selection section which selects a reporting method for the terminal devices to report reception state information to the base station device based on load information acquired by the load information acquisition section, and a reporting section which reports the reporting method selected by the reporting method selection section to the terminal devices. | 05-06-2010 |
20110007784 | RELAY DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - Even when an amplifier has a comparatively narrow linear region in a terminal, it is possible to suppress degradation of the transmission characteristic by using single-carrier transmission between the terminal and a relay device while using multi-carrier transmission between the relay device and a base station on an uplink of a communication system. The relay station ( | 01-13-2011 |
20110032973 | RADIO COMMUNICATION SYSTEM AND TRANSMITTING APPARATUS USED FOR THE SAME - To provide a system that can accommodate a greater number of terminals within a limited band and can obtain a higher transmission rate. While the number of frequency signals (spectrums) output in parallel by performing a spread spectrum from the DFT unit of each terminal is 12, the number of sub-carriers constituting one sub-channel is set at 10 or 11. In this case, the users (users A and G) allocated to the sub-channels at both ends of the band will not perform transmission of one frequency signal at the end (one sub-carrier) of all the frequency signals output from the DFT unit, whereas the users (users B to F) allocated to the other sub-channels will not perform transmission of the frequency signals at the ends (two sub-carriers). This transmission can be realized by deleting (clipping) the associated number of signals from both ends or from one end of the frequency signals output from the DFT unit of each terminal and allocating the frequency signals after clipping, to individual sub-channels. | 02-10-2011 |
20110038346 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE, AND WIRELESS COMMUNICATION METHOD - A wireless communication system includes a first communication device which arranges a frequency signal into which a single carrier signal is converted by time-to-frequency conversion in subcarriers and wirelessly transmits a resultant signal and a second communication device which receives the signal wirelessly transmitted by the first communication device. The wireless communication system includes a selection unit which calculates, for each determined selection candidate as a combination of a predetermined segment size and information indicating predetermined average transmission power, a value indicating reception quality in the second communication device upon transmission by the first communication device by using an arrangement using the predetermined segment size, and the predetermined average transmission power, and which selects a selection candidate to be used upon transmission by the first communication device from among the selection candidates based on the calculated value indicating the reception quality. Therefore, an excellent transmission efficiency is obtained. | 02-17-2011 |
20110044377 | RADIO COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD - A clipping rate is controlled in spectrum shaping according to a propagation path to thereby improve transmission characteristics and perform communication at a stable transmission rate. | 02-24-2011 |
20110044382 | RECEIVING APPARATUS AND COMMUNICATION SYSTEM - A receiving antenna diversity effect is improved by equalizing the likelihood while exchanging the likelihood among a plurality of equalizers. A receiving apparatus ( | 02-24-2011 |
20110097994 | BASE STATION APPARATUS, RELAY STATION APPARATUS, AND COMMUNICATION SYSTEM - Provided is a communication system that can allocate resources on an uplink for a CQI report, and can reduce the overhead of the CQI relay transmission from a relay station apparatus to a base station apparatus. To each mobile station apparatus ( | 04-28-2011 |
20110116566 | WIRELESS COMMUNICATION SYSTEM, TRANSMITTER AND RECEIVER - According to the present invention, a transmitter includes: multiple antennas 15-1, 15-2; a DFT unit 04 configured to transform a time domain signal into a frequency domain signal; a cluster mapping unit 05 configured to divide the frequency domain signal into clusters and to assign the clusters to frequencies on the basis of cluster assignment information; an IDFT unit 06 configured to transform a mapped frequency domain signal into a time domain signal; and cyclic delay setting units 11-1, 11-2 configured to set, for the respective multiple antennas, a cyclic delay amount to the IDFT-transformed time domain signal. | 05-19-2011 |
20110122807 | BASE STATION APPARATUS, RELAY STATION APPARATUS, AND COMMUNICATION SYSTEM - Provided is a communication system that can allocate resources on an uplink for a CQI report, and can reduce the overhead of the CQI relay transmission from a relay station apparatus to a base station apparatus. To each mobile station apparatus ( | 05-26-2011 |
20110188442 | RELAY APPARATUS, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A relay apparatus compresses an information amount of channel quality information notified from a plurality of terminal apparatuses to notify a control station apparatus, and thereby improves spectral efficiency. The relay apparatus | 08-04-2011 |
20110200071 | WIRELESS COMMUNICATION SYSTEM, CONTROL STATION APPARATUS AND TERMINAL APPARATUS - To switch among access schemes of different systems efficiently, in a wireless communication system for selecting one access scheme from among a plurality of access schemes to perform wireless communications in between a control station apparatus and a terminal apparatus, the control station apparatus notifies the terminal apparatus of an access scheme using information indirectly designating the access scheme, and the terminal apparatus selects one access scheme from among a plurality of access schemes according to the notified information to perform wireless communications with the control station apparatus. | 08-18-2011 |
20110228815 | TRANSMISSION APPARATUS, RECEPTION APPARATUS AND COMMUNICATION SYSTEM - In SU-MIMO, even when the channel state of one antenna is poor, an error ratio is improved by obtaining a transmission antenna diversity effect. A transmission apparatus | 09-22-2011 |
20110255624 | MULTIUSER MIMO SYSTEM, RECEIVER, AND TRANSMITTER - Even when respective transmitters use different transmission schemes, signals of the respective transmitters are separated. A receiver that is applied to a multiuser MIMO system in which a plurality of transmitters performs transmission to at least one receiver, includes a MIMO separation part | 10-20-2011 |
20110286382 | RADIO COMMUNICATION SYSTEM AND BASE STATION - Disclosed is a radio communication system including relay stations | 11-24-2011 |
20110320920 | CODING APPARATUS, RECEIVING APPARATUS, WIRELESS COMMUNICATION SYSTEM, PUNCTURING PATTERN SELECTING METHOD AND PROGRAM THEREOF - By controlling to select encoding appropriately considering characteristics of equalization and decoding of a receiving apparatus employing a turbo equalization technology, it is possible to attain a high transmission characteristic. Information bits of two systems including a sequence which is input to a first RSC encoding unit | 12-29-2011 |
20120002580 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND PROGRAM - A mobile station apparatus performs communication with abase station apparatus using a multiple number of component frequency bands, each being a band having a predetermined frequency bandwidth, and includes: a controller setting up a value relating to the transmission power of each component frequency band in accordance with the number of component frequency bands to which radio resources are allocated; and a transmission processor adjusting the transmission power of each component frequency band, based on the value of transmission power set at the controller and transmitting a signal using radio resources of a multiple number of component frequency bands. With this configuration, in a radio communication system using a multiple number of component frequency bands, it is possible to adjust transmission power control in accordance with the number of uplink component frequency bands used for transmission and transmit a signal of a waveform suitable for the radio communication system. | 01-05-2012 |
20120002602 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND COMMUNICATION METHOD - TPC is appropriately operated in response to access method switching timing, an error is prevented from occurring in communication, and influence given to another cell due to transmission of unnecessary power is reduced. | 01-05-2012 |
20120057543 | WIRELESS COMMUNICATION SYSTEM, RECEPTION APPARATUS, TRANSMISSION APPARATUS, COMMUNICATION METHOD OF WIRELESS COMMUNICATION SYSTEM, CONTROL PROGRAM, AND AUTONOMOUS DISTRIBUTED NETWORK - Based on a data signal and a known reference signal, a frequency response of a channel is predicted, and the state of the channel over the entire transmission band is predicted such that frequency allocation is performed in a short period of time. A reception apparatus that receives a signal from a transmission apparatus which distributedly arranges signals in a frequency domain into a plurality of frequencies and which performs wireless transmission, the reception apparatus including: a channel property prediction unit ( | 03-08-2012 |
20120063341 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD - To reduce power consumption in a mobile station apparatus in uplink, while making the system more efficient, the mobile station apparatus has a plurality of transmission antennas | 03-15-2012 |
20120064846 | WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMITTER, AND CONTROL PROGRAM FOR WIRELESS TRANSMITTER - By switching between an SFBC and a CDD according to required transmission power in an uplink, the transmission diversity of the uplink is efficiently performed. A wireless transmitter which includes transmitting antennas | 03-15-2012 |
20120093114 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, BASE STATION CONTROL PROGRAM, AND MOBILE STATION CONTROL PROGRAM - A wireless communication system which includes a base station and a mobile station and in which the mobile station performs data transmission to the base station by allocating a transmission signal converted into a frequency signal to contiguous frequency bands or non-contiguous frequency bands divided into a predetermined number, wherein, when retransmission occurs in the data transmission the mobile station has performed by allocating the transmission signal converted into the frequency signal into the non-contiguous frequency bands, the base station determines a transmission power headroom of the mobile station in the allocation of the transmission signal to the non-contiguous frequency bands, and, if a result of the determination shows that there is not a transmission power headroom, the base station instructs the mobile station to allocate the transmission signal to the contiguous frequency bands and to perform the retransmission by increasing transmission power. | 04-19-2012 |
20120093251 | RADIO COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, AND RECEPTION APPARATUS - To provide a radio communication system, a transmission apparatus, a central control unit, and a reception apparatus, which can enhance transmission performances without giving more interference than necessary. The radio communication system in which a plurality of transmission apparatuses | 04-19-2012 |
20120096336 | Transmission Apparatus Reception Apparatus and Communication System - To improve performance of a decoder even in a system with the coder configuration determined by inserting a doping bit sequence known between a transmission apparatus and a reception apparatus in an information bit sequence to transmit, the transmission apparatus is a transmission apparatus that transmits radio signals to the reception apparatus, and is provided with a doping section | 04-19-2012 |
20120120942 | WIRELESS COMMUNICATION SYSTEM, TRANSMITTER AND WIRELESS COMMUNICATION METHOD - To suppress deterioration of channel estimation accuracy even when a terminal moves at high speed in a system for switching among a plurality of insertion patterns of channel estimation signals, in a wireless communication system for using one of a plurality of types of frame formats with different insertion positions of a channel estimation symbol, and spreading data in the frequency domain to perform communications, the types of frame formats include at least a first frame format having a channel estimation symbol in which channel estimation signals are allocated to all subcarriers, and a second frame format having a channel estimation symbol in which a channel estimation signal and data is multiplexed, and PAPR characteristics of a subcarrier for data transmission in the second frame format are the same as PAPR characteristics of a subcarrier for transmitting a symbol assigned only the data. | 05-17-2012 |
20120275410 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND FREQUENCY ALLOCATING METHOD - A wireless communication system includes: a plurality of transmitter apparatuses each of which converts a transmitted signal into a frequency signal, then places the frequency signal into a frequency spectrum allocated to the transmitter apparatus and then transmits the signal; and a receiver apparatus that receives the signals transmitted by the plurality of transmitter apparatuses, removes the interference between the signals of the transmitter apparatuses, and separates the signals of the respective transmitter apparatuses; wherein the bandwidth obtained by summing the frequency spectra allocated to the plurality of transmitter apparatus exceeds the allocatable system bandwidth. | 11-01-2012 |
20140119326 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, BASE STATION CONTROL PROGRAM, AND MOBILE STATION CONTROL PROGRAM - A base station which includes a transmission section that is configured to transmit, to a mobile station, first information indicating first control information for controlling a number of transmission antennas of the mobile station for retransmitting transmission data with at least second information indicating a retransmission request and third information indicating second control information for controlling retransmission power for retransmitting the transmission data. The base station also includes a radio section configured to receive, from the mobile station, the transmission data. | 05-01-2014 |
20140187229 | WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMISSION APPARATUS AND WIRELESS TRANSMISSION METHOD - A wireless transmission apparatus that transmits transmission data in each of a plurality of system frequency bands using a transmission power controlled so that a total transmission power of each of the plurality of system frequency bands is less than a maximum transmit power, where the maximum transmit power incase of transmitting the transmission data simultaneously using two or more system frequency bands in the plurality of system frequency bands is less than a maximum transmit power in case of transmitting the transmission data using single system frequency band in the plurality of system frequency band. | 07-03-2014 |
20140219318 | WIRELESS COMMUNICATION SYSTEM, CONTROL STATION APPARATUS AND TERMINAL APPARATUS - A control station apparatus comprising a transmitter that is configured to transmit, to a terminal apparatus, information indicating an allocation method for allocating frequency signals to a plurality of subcarriers, where the information indicates a communication scheme which is one of Single Carrier Frequency Division Multiple Access (SC-FDMA) scheme and Clustered Discrete Fourier Transform-spread-OFDM (Clustered DFT-S-OFDM) scheme. | 08-07-2014 |
20140334367 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND PROGRAM - A mobile station (MS) communicates with a base station using a plurality of component frequency bands, each band of the plurality of component frequency bands being a band having a predetermined frequency bandwidth. The MS sets up an upper limit value of transmission power (TP) of each component frequency band in accordance with the number of component frequency bands to which radio resources are allocated at a time. The MS also adjusts the TP of each component frequency band based on the upper limit value of TP set at the controller, wherein the adjusting of the TP is according to the following formula: | 11-13-2014 |
20150055596 | WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMITTER, AND CONTROL PROGRAM FOR WIRELESS TRANSMITTER - A mobile station transmitting transmission signals using one of a plurality of transmission schemes which includes at least a first transmission scheme and a second transmission scheme, where in a case that the used transmission scheme is the first transmission scheme, the transmission signals are applied by an open loop (OL) in which precoding information is not fed back and in a case that the used transmission scheme is the second transmission scheme, the transmission signals are applied by a closed loop (CL) for which a precoding matrix indicator (PMI) is fed back from the mobile station. The first peak-to-average power ratio (PAPR) characteristics of the first transmission scheme differs from the second PAPR characteristics of the second transmission scheme. | 02-26-2015 |